package lab02.test36;

/**
 * Created by Lenovo on 2017/11/9.
 */
public class Undergraduate extends Student {

    @Override
    String calGrade() {

        // 得到该生的平均成绩
        double avg = calAverage();

        if (avg >= 80 && avg <= 100)
            grade = "优秀";
        else if(avg >= 70 && avg < 80)
            grade = "良好";
        else if( avg >= 60 && avg < 70)
            grade = "一般";
        else if(avg >= 50 && avg < 60)
            grade = "及格";
        else
            grade = "不及格";

        return grade;
    }
}

